Hundreds of Washington, D.C.-area high school students swarm the plaza of the U.S. Supreme Court as they march through the nation’s capital on Tuesday to protest the election of Donald Trump as President. (Bill Clark/CQ Roll Call)

A flyer that was handed out urged students to remain peaceful and prohibited any obscene chants or curse words.

One sign carried by the students opposed the appointment of Breitbart executive Stephen Bannon as chief strategist to Trump. One sign was written in Arabic, with an explanation underneath: “Chill out. It just means “Build Bridges, Not Walls.”

Anna and Sebastien, both 15-year-old students at Woodrow Wilson High School, left their classrooms for the walkout around lunch time.

“Most of us are voting in the next election,” she said. “Even most freshmen this year can vote.”

Despite their dissent, it is not likely that the students would pose much of a threat to Trump in future elections. The city’s electoral votes are already reliably Democratic.

James Poindexter, 17, said he was initially skeptical about the walkout. But he was heartened by the turnout.